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bananatools/board/qr.c

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#include <windows.h>
#include <stdbool.h>
#include <stdint.h>
#include "board/qr.h"
#include "hook/table.h"
#include "hook/iobuf.h"
#include "hook/iohook.h"
#include "hooklib/uart.h"
#include "hooklib/fdshark.h"
#include "util/dprintf.h"
#include "util/dump.h"
/*
* Scans QR Codes that the Taiko twitter sometimes
* puts out to unlock songs and other things. Pretty
* sure that it's COM1...
*/
static HRESULT qr_handle_irp_locked(struct irp *irp);
static HRESULT qr_handle_irp(struct irp *irp);
static struct uart qr_uart;
static CRITICAL_SECTION qr_lock;
static uint8_t qr_written_bytes[520];
static uint8_t qr_readable_bytes[520];
HRESULT qr_hook_init(const struct qr_config *cfg, unsigned int port)
{
assert(cfg != NULL);
if (!cfg->enable) {
return S_FALSE;
}
if (cfg->port > 0) {
port = cfg->port;
}
dprintf("QR: Init\n");
uart_init(&qr_uart, port);
qr_uart.written.bytes = qr_written_bytes;
qr_uart.written.nbytes = sizeof(qr_written_bytes);
qr_uart.readable.bytes = qr_readable_bytes;
qr_uart.readable.nbytes = sizeof(qr_readable_bytes);
InitializeCriticalSection(&qr_lock);
return iohook_push_handler(qr_handle_irp);
return S_OK;
}
static HRESULT qr_handle_irp(struct irp *irp)
{
HRESULT hr;
assert(irp != NULL);
if (uart_match_irp(&qr_uart, irp)) {
EnterCriticalSection(&qr_lock);
hr = qr_handle_irp_locked(irp);
LeaveCriticalSection(&qr_lock);
}
else {
return iohook_invoke_next(irp);
}
return hr;
}
static HRESULT qr_handle_irp_locked(struct irp *irp)
{
HRESULT hr;
if (irp->op == IRP_OP_OPEN) {
dprintf("QR: Starting backend\n");
}
hr = uart_handle_irp(&qr_uart, irp);
if (FAILED(hr)) {
return hr;
}
#if 1
dprintf("QR: IRP_OP %d Written\n", irp->op);
dump_iobuf(&qr_uart.written);
#endif
return S_OK;
}